[Android WebView] Turn on accelerated canvas based on View.isHardwareAccelerated

android_webview/java/src/org/chromium/android_webview/AwSettings.java

Index: android_webview/java/src/org/chromium/android_webview/AwSettings.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwSettings.java b/android_webview/java/src/org/chromium/android_webview/AwSettings.java
index 6cc8e532ef99d5912feb9acabd0788e3eb1ebefc..90c915245df740bcd77848fdcc4b649e491304d1 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwSettings.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwSettings.java
@@ -82,6 +82,8 @@ public class AwSettings {
     private String mDefaultVideoPosterURL;
     private float mInitialPageScalePercent = 0;
     private boolean mSpatialNavigationEnabled;  // Default depends on device features.
+    // May map to multiple webkit preferences.

[mnaganov (inactive), 2014/01/17 09:56:22]

nit: We already have settings that map to multiple prefs, no need to declare
this.

[boliu, 2014/01/17 14:58:49]

Ok, removed comment.

+    private boolean enableSupportedHardwareAcceleratedFeatures = false;

[mnaganov (inactive), 2014/01/17 09:56:22]

mEnableSupportedHardwareAcceleratedFeatures

[boliu, 2014/01/17 14:58:49]

Done.

 
     private final boolean mSupportLegacyQuirks;
 
@@ -181,7 +183,9 @@ public class AwSettings {
                     while (mIsUpdateWebkitPrefsMessagePending) {
                         mAwSettingsLock.wait();
                     }
-                } catch (InterruptedException e) {}
+                } catch (InterruptedException e) {
+                    // Nothing to do.

[boliu, 2014/01/16 23:59:37]

This is to handle a presubmit warning.

[mnaganov (inactive), 2014/01/17 09:56:22]

FYI, Ben is also fixing this in https://codereview.chromium.org/140913003/

[boliu, 2014/01/17 14:58:49]

Ok, no-op to avoid conflicts then.

+                }
             }
         }
     }
@@ -390,6 +394,20 @@ public class AwSettings {
         return mSpatialNavigationEnabled;
     }
 
+    void setEnableSupportedHardwareAcceleratedFeatures(boolean enable) {
+        synchronized (mAwSettingsLock) {
+            if (enableSupportedHardwareAcceleratedFeatures != enable) {
+                enableSupportedHardwareAcceleratedFeatures = enable;
+                mEventHandler.updateWebkitPreferencesLocked();
+            }
+        }
+    }
+
+    @CalledByNative
+    private boolean getEnableSupportedHardwareAcceleratedFeatures() {

[mnaganov (inactive), 2014/01/17 09:56:22]

Please add "Locked" suffix, since those getters are called while holding
mAwSettingsLock.

[boliu, 2014/01/17 14:58:49]

Done.

+        return enableSupportedHardwareAcceleratedFeatures;
+    }
+
     /**
      * See {@link android.webkit.WebSettings#setNeedInitialFocus}.
      */