google_apis: Change auto to not deduce raw pointers.

google_apis/drive/drive_api_requests.cc

Index: google_apis/drive/drive_api_requests.cc
diff --git a/google_apis/drive/drive_api_requests.cc b/google_apis/drive/drive_api_requests.cc
index eefaa3594b771ff1a80d7dbb6e9d6b3fd40a4e64..4e622a8969dc24b4ca7a2a76d85c1a0c74dea37a 100644
--- a/google_apis/drive/drive_api_requests.cc
+++ b/google_apis/drive/drive_api_requests.cc
@@ -1282,7 +1282,7 @@ ScopedVector<BatchUploadChildEntry>::iterator BatchUploadRequest::GetChildEntry(
 void BatchUploadRequest::MayCompletePrepare() {
   if (!committed_ || prepare_callback_.is_null())
     return;
-  for (const auto& child : child_requests_) {
+  for (auto* child : child_requests_) {
     if (!child->prepared)
       return;
   }
@@ -1290,7 +1290,7 @@ void BatchUploadRequest::MayCompletePrepare() {
   // Build multipart body here.
   int64_t total_size = 0;
   std::vector<ContentTypeAndData> parts;
-  for (auto& child : child_requests_) {
+  for (auto* child : child_requests_) {
     std::string type;
     std::string data;
     const bool result = child->request->GetContentData(&type, &data);
@@ -1402,7 +1402,7 @@ void BatchUploadRequest::ProcessURLFetchResults(const net::URLFetcher* source) {
 }
 
 void BatchUploadRequest::RunCallbackOnPrematureFailure(DriveApiErrorCode code) {
-  for (auto& child : child_requests_)
+  for (auto* child : child_requests_)
     child->request->NotifyError(code);
   child_requests_.clear();
 }
@@ -1410,7 +1410,7 @@ void BatchUploadRequest::RunCallbackOnPrematureFailure(DriveApiErrorCode code) {
 void BatchUploadRequest::OnURLFetchUploadProgress(const net::URLFetcher* source,
                                                   int64_t current,
                                                   int64_t total) {
-  for (auto& child : child_requests_) {
+  for (auto* child : child_requests_) {
     if (child->data_offset <= current &&
         current <= child->data_offset + child->data_size) {
       child->request->NotifyUploadProgress(source, current - child->data_offset,