diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index 2b1f453..989b127 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -834,7 +834,7 @@
             case 'd':
             {
                 dumpStream = true;
-                dumpStreamFilename.setTo(optarg);
+                dumpStreamFilename = optarg;
                 break;
             }
 
@@ -842,13 +842,13 @@
             {
                 dumpPCMStream = true;
                 audioOnly = true;
-                dumpStreamFilename.setTo(optarg);
+                dumpStreamFilename = optarg;
                 break;
             }
 
             case 'N':
             {
-                gComponentNameOverride.setTo(optarg);
+                gComponentNameOverride = optarg;
                 break;
             }
 
@@ -886,7 +886,7 @@
             case 'w':
             {
                 gWriteMP4 = true;
-                gWriteMP4Filename.setTo(optarg);
+                gWriteMP4Filename = optarg;
                 break;
             }
 
diff --git a/drm/mediacas/plugins/clearkey/JsonAssetLoader.cpp b/drm/mediacas/plugins/clearkey/JsonAssetLoader.cpp
index ad015bf..a54ae47 100644
--- a/drm/mediacas/plugins/clearkey/JsonAssetLoader.cpp
+++ b/drm/mediacas/plugins/clearkey/JsonAssetLoader.cpp
@@ -128,7 +128,7 @@
             if (nextToken + 1 == mTokens.end())
                 break;
             valueToken = (*(nextToken + 1)).c_str();
-            value->setTo(valueToken);
+            *value = valueToken;
             nextToken++;
             break;
         }
@@ -172,7 +172,7 @@
         pjs = jsonObject.c_str() + mJsmnTokens[j].start;
         if (mJsmnTokens[j].type == JSMN_STRING ||
                 mJsmnTokens[j].type == JSMN_PRIMITIVE) {
-            token.setTo(pjs, mJsmnTokens[j].end - mJsmnTokens[j].start);
+            token = String8(pjs, mJsmnTokens[j].end - mJsmnTokens[j].start);
             tokens->add(token);
             ALOGV("add token: %s", token.c_str());
         }
@@ -221,7 +221,7 @@
     for (int i = 0; i < numTokens; ++i) {
         pjs = jsonAsset.c_str() + mJsmnTokens[i].start;
         if (mJsmnTokens[i].type == JSMN_OBJECT) {
-            token.setTo(pjs, mJsmnTokens[i].end - mJsmnTokens[i].start);
+            token = String8(pjs, mJsmnTokens[i].end - mJsmnTokens[i].start);
             jsonObjects->add(token);
         }
     }
diff --git a/drm/mediadrm/plugins/clearkey/default/JsonWebKey.cpp b/drm/mediadrm/plugins/clearkey/default/JsonWebKey.cpp
index 6f87f9d..a12b1d1 100644
--- a/drm/mediadrm/plugins/clearkey/default/JsonWebKey.cpp
+++ b/drm/mediadrm/plugins/clearkey/default/JsonWebKey.cpp
@@ -160,7 +160,7 @@
             if (nextToken + 1 == mTokens.end())
                 break;
             valueToken = (*(nextToken + 1)).c_str();
-            value->setTo(valueToken);
+            *value = valueToken;
             nextToken++;
             break;
         }
@@ -211,7 +211,7 @@
         pjs = jsonObject.c_str() + mJsmnTokens[j].start;
         if (mJsmnTokens[j].type == JSMN_STRING ||
                 mJsmnTokens[j].type == JSMN_PRIMITIVE) {
-            token.setTo(pjs, mJsmnTokens[j].end - mJsmnTokens[j].start);
+            token = String8(pjs, mJsmnTokens[j].end - mJsmnTokens[j].start);
             tokens->add(token);
         }
     }
@@ -259,7 +259,7 @@
     for (int i = 0; i < numTokens; ++i) {
         pjs = jsonWebKeySet.c_str() + mJsmnTokens[i].start;
         if (mJsmnTokens[i].type == JSMN_OBJECT) {
-            token.setTo(pjs, mJsmnTokens[i].end - mJsmnTokens[i].start);
+            token = String8(pjs, mJsmnTokens[i].end - mJsmnTokens[i].start);
             jsonObjects->add(token);
         }
     }
diff --git a/media/libaudiohal/impl/CoreConversionHelperHidl.cpp b/media/libaudiohal/impl/CoreConversionHelperHidl.cpp
index bd18902..b801187 100644
--- a/media/libaudiohal/impl/CoreConversionHelperHidl.cpp
+++ b/media/libaudiohal/impl/CoreConversionHelperHidl.cpp
@@ -97,7 +97,7 @@
     for (size_t i = 0; i < parameters.size(); ++i) {
         params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
     }
-    values->setTo(params.toString());
+    *values = params.toString();
 }
 
 CoreConversionHelperHidl::CoreConversionHelperHidl(std::string_view className)
diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp
index 1dfd53d..a9e5a83 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.cpp
+++ b/media/libmediaplayerservice/StagefrightRecorder.cpp
@@ -531,7 +531,7 @@
         --i;
     }
 
-    s->setTo(String8(&data[leading_space], i - leading_space));
+    *s = String8(&data[leading_space], i - leading_space);
 }
 
 status_t StagefrightRecorder::setParamAudioSamplingRate(int32_t sampleRate) {
@@ -825,7 +825,7 @@
 status_t StagefrightRecorder::setParamRtpLocalIp(const String8 &localIp) {
     ALOGV("setParamVideoLocalIp: %s", localIp.c_str());
 
-    mLocalIp.setTo(localIp.c_str());
+    mLocalIp = localIp.c_str();
     return OK;
 }
 
@@ -839,7 +839,7 @@
 status_t StagefrightRecorder::setParamRtpRemoteIp(const String8 &remoteIp) {
     ALOGV("setParamVideoRemoteIp: %s", remoteIp.c_str());
 
-    mRemoteIp.setTo(remoteIp.c_str());
+    mRemoteIp = remoteIp.c_str();
     return OK;
 }
 
@@ -932,7 +932,7 @@
     ALOGV("setLogSessionId: %s", log_session_id.c_str());
 
     // TODO: validity check that log_session_id is a 32-byte hex digit.
-    mLogSessionId.setTo(log_session_id.c_str());
+    mLogSessionId = log_session_id.c_str();
     return OK;
 }
 
@@ -1137,9 +1137,9 @@
         const char *semicolon_pos = strchr(value_start, ';');
         String8 value;
         if (semicolon_pos == NULL) {
-            value.setTo(value_start);
+            value = value_start;
         } else {
-            value.setTo(value_start, semicolon_pos - value_start);
+            value = String8(value_start, semicolon_pos - value_start);
         }
         if (setParameter(key, value) != OK) {
             return BAD_VALUE;
diff --git a/media/libmediaplayerservice/nuplayer/RTPSource.cpp b/media/libmediaplayerservice/nuplayer/RTPSource.cpp
index efe1a80..9a33120 100644
--- a/media/libmediaplayerservice/nuplayer/RTPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTPSource.cpp
@@ -751,9 +751,9 @@
         const char *semicolon_pos = strchr(value_start, ';');
         String8 value;
         if (semicolon_pos == NULL) {
-            value.setTo(value_start);
+            value = value_start;
         } else {
-            value.setTo(value_start, semicolon_pos - value_start);
+            value = String8(value_start, semicolon_pos - value_start);
         }
         if (setParameter(key, value) != OK) {
             return BAD_VALUE;
@@ -796,7 +796,7 @@
         --i;
     }
 
-    s->setTo(String8(&data[leading_space], i - leading_space));
+    *s = String8(&data[leading_space], i - leading_space);
 }
 
 }  // namespace android
diff --git a/media/module/extractors/mp4/ItemTable.cpp b/media/module/extractors/mp4/ItemTable.cpp
index 444664c..7fe5ba7 100644
--- a/media/module/extractors/mp4/ItemTable.cpp
+++ b/media/module/extractors/mp4/ItemTable.cpp
@@ -1111,7 +1111,7 @@
         }
         buf.push_back(tmp);
         if (tmp == 0) {
-            out->setTo(buf.array());
+            *out = buf.array();
 
             *offset = newOffset;
             *size = stopOffset - newOffset;
diff --git a/media/module/extractors/mp4/MPEG4Extractor.cpp b/media/module/extractors/mp4/MPEG4Extractor.cpp
index 6a1c5f1..ecd937d 100644
--- a/media/module/extractors/mp4/MPEG4Extractor.cpp
+++ b/media/module/extractors/mp4/MPEG4Extractor.cpp
@@ -847,7 +847,7 @@
     struct tm* tm = gmtime(&time_1970);
     if (tm != NULL &&
             strftime(tmp, sizeof(tmp), "%Y%m%dT%H%M%S.000Z", tm) > 0) {
-        s->setTo(tmp);
+        *s = tmp;
         return true;
     }
     return false;
@@ -4082,10 +4082,10 @@
             buffer[size] = '\0';
             switch (mPath[5]) {
                 case FOURCC("mean"):
-                    mLastCommentMean.setTo((const char *)buffer + 4);
+                    mLastCommentMean = ((const char *)buffer + 4);
                     break;
                 case FOURCC("name"):
-                    mLastCommentName.setTo((const char *)buffer + 4);
+                    mLastCommentName = ((const char *)buffer + 4);
                     break;
                 case FOURCC("data"):
                     if (size < 8) {
@@ -4094,7 +4094,7 @@
                         ALOGE("b/24346430");
                         return ERROR_MALFORMED;
                     }
-                    mLastCommentData.setTo((const char *)buffer + 8);
+                    mLastCommentData = ((const char *)buffer + 8);
                     break;
             }
 
diff --git a/media/module/id3/ID3.cpp b/media/module/id3/ID3.cpp
index 1f3cad9..aaaeeaf 100644
--- a/media/module/id3/ID3.cpp
+++ b/media/module/id3/ID3.cpp
@@ -535,40 +535,40 @@
 }
 
 void ID3::Iterator::getID(String8 *id) const {
-    id->setTo("");
+    *id = "";
 
     if (mFrameData == NULL) {
         return;
     }
 
     if (mParent.mVersion == ID3_V2_2) {
-        id->setTo((const char *)&mParent.mData[mOffset], 3);
+        *id = String8((const char *)&mParent.mData[mOffset], 3);
     } else if (mParent.mVersion == ID3_V2_3 || mParent.mVersion == ID3_V2_4) {
-        id->setTo((const char *)&mParent.mData[mOffset], 4);
+        *id = String8((const char *)&mParent.mData[mOffset], 4);
     } else {
         CHECK(mParent.mVersion == ID3_V1 || mParent.mVersion == ID3_V1_1);
 
         switch (mOffset) {
             case 3:
-                id->setTo("TT2");
+                *id = "TT2";
                 break;
             case 33:
-                id->setTo("TP1");
+                *id = "TP1";
                 break;
             case 63:
-                id->setTo("TAL");
+                *id = "TAL";
                 break;
             case 93:
-                id->setTo("TYE");
+                *id = "TYE";
                 break;
             case 97:
-                id->setTo("COM");
+                *id = "COM";
                 break;
             case 126:
-                id->setTo("TRK");
+                *id = "TRK";
                 break;
             case 127:
-                id->setTo("TCO");
+                *id = "TCO";
                 break;
             default:
                 CHECK(!"should not be here.");
@@ -590,7 +590,7 @@
 // followed by more data. The data following the \0 can be retrieved by setting
 // "otherdata" to true.
 void ID3::Iterator::getstring(String8 *id, bool otherdata) const {
-    id->setTo("");
+    *id = "";
 
     const uint8_t *frameData = mFrameData;
     if (frameData == NULL) {
@@ -605,13 +605,13 @@
             char tmp[16];
             snprintf(tmp, sizeof(tmp), "%d", (int)*frameData);
 
-            id->setTo(tmp);
+            *id = tmp;
             return;
         }
 
         // this is supposed to be ISO-8859-1, but pass it up as-is to the caller, who will figure
         // out the real encoding
-        id->setTo((const char*)frameData, mFrameSize);
+        *id = String8((const char*)frameData, mFrameSize);
         return;
     }
 
@@ -640,10 +640,10 @@
 
     if (encoding == 0x00) {
         // supposedly ISO 8859-1
-        id->setTo((const char*)frameData + 1, n);
+        *id = String8((const char*)frameData + 1, n);
     } else if (encoding == 0x03) {
         // supposedly UTF-8
-        id->setTo((const char *)(frameData + 1), n);
+        *id = String8((const char *)(frameData + 1), n);
     } else if (encoding == 0x02) {
         // supposedly UTF-16 BE, no byte order mark.
         // API wants number of characters, not number of bytes...
@@ -662,7 +662,7 @@
             framedata = framedatacopy;
         }
 #endif
-        id->setTo(framedata, len);
+        *id = String8(framedata, len);
         if (framedatacopy != NULL) {
             delete[] framedatacopy;
         }
@@ -715,13 +715,13 @@
                 for (int i = 0; i < len; i++) {
                     frame8[i] = framedata[i];
                 }
-                id->setTo(frame8, len);
+                *id = String8(frame8, len);
                 delete [] frame8;
             } else {
-                id->setTo(framedata, len);
+                *id = String8(framedata, len);
             }
         } else {
-            id->setTo(framedata, len);
+            *id = String8(framedata, len);
         }
 
         if (framedatacopy != NULL) {
@@ -948,7 +948,7 @@
 const void *
 ID3::getAlbumArt(size_t *length, String8 *mime) const {
     *length = 0;
-    mime->setTo("");
+    *mime = "";
 
     Iterator it(
             *this,
@@ -971,7 +971,7 @@
                 ALOGW("bogus album art size: mime");
                 return NULL;
             }
-            mime->setTo((const char *)&data[consumed]);
+            *mime = (const char *)&data[consumed];
             consumed += mimeLen;
 
 #if 0
@@ -1008,11 +1008,11 @@
             }
 
             if (!memcmp(&data[1], "PNG", 3)) {
-                mime->setTo("image/png");
+                *mime = "image/png";
             } else if (!memcmp(&data[1], "JPG", 3)) {
-                mime->setTo("image/jpeg");
+                *mime = "image/jpeg";
             } else if (!memcmp(&data[1], "-->", 3)) {
-                mime->setTo("text/plain");
+                *mime = "text/plain";
             } else {
                 return NULL;
             }