[android_webview] Use auto-sizing for webviews in wrap content mode.

android_webview/native/aw_contents.cc

Index: android_webview/native/aw_contents.cc
diff --git a/android_webview/native/aw_contents.cc b/android_webview/native/aw_contents.cc
index dd8db0a43d62b20fe520441fc1157b3d888e1cab..f374deee62d4e230c85a037dc54a12a4576cbe1f 100644
--- a/android_webview/native/aw_contents.cc
+++ b/android_webview/native/aw_contents.cc
@@ -50,6 +50,7 @@
 #include "ui/base/l10n/l10n_util_android.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/image/image.h"
+#include "ui/gfx/size.h"
 
 struct AwDrawSWFunctionTable;
 struct AwDrawGLFunctionTable;
@@ -743,14 +744,21 @@ void AwContents::DidOverscroll(gfx::Vector2d overscroll_delta) {
       env, obj.obj(), overscroll_delta.x(), overscroll_delta.y());
 }
 
-void AwContents::SetDipScale(JNIEnv* env, jobject obj, jfloat dipScale) {
-  browser_view_renderer_->SetDipScale(dipScale);
+void AwContents::SetDipScale(JNIEnv* env, jobject obj, jfloat dip_scale) {
+  browser_view_renderer_->SetDipScale(dip_scale);
 }
 
 void AwContents::SetDisplayedPageScaleFactor(JNIEnv* env,
                                              jobject obj,
-                                             jfloat pageScaleFactor) {
-  browser_view_renderer_->SetPageScaleFactor(pageScaleFactor);
+                                             jfloat page_scale_factor) {
+  browser_view_renderer_->SetPageScaleFactor(page_scale_factor);
+}
+
+void AwContents::SetAutoResizeMode(JNIEnv* env,
+                                   jobject obj,
+                                   jboolean enabled,
+                                   jint width_dip) {
+  render_view_host_ext_->SetAutoResizeMode(enabled, width_dip);
 }
 
 void AwContents::ScrollTo(JNIEnv* env, jobject obj, jint xPix, jint yPix) {