add webSetting API to allow media play without user gesture

bug:6806306
This also include partial change from webkit.
http://trac.webkit.org/changeset/91232

Framework change: https://android-git.corp.google.com/g/#/c/208569/

Change-Id: I1a843472c0ce3b01bcad3b7c3c12c93702f2970c

4 files changed, 19 insertions, 3 deletions

diff --git a/Source/WebCore/html/HTMLMediaElement.cpp b/Source/WebCore/html/HTMLMediaElement.cpp
index d25bada..693f214 100644
--- a/Source/WebCore/html/HTMLMediaElement.cpp
+++ b/Source/WebCore/html/HTMLMediaElement.cpp
@@ -185,9 +185,9 @@ HTMLMediaElement::HTMLMediaElement(const QualifiedName& tagName, Document* docum
     document->registerForDocumentActivationCallbacks(this);
     document->registerForMediaVolumeCallbacks(this);
     document->registerForPrivateBrowsingStateChangedCallbacks(this);
-#if PLATFORM(ANDROID) && ENABLE(TOUCH_EVENTS)
-    m_restrictions |= RequireUserGestureForRateChangeRestriction;
-#endif
+
+    if (document->settings() && document->settings()->mediaPlaybackRequiresUserGesture())
+        m_restrictions |= RequireUserGestureForRateChangeRestriction;
 }
 
 HTMLMediaElement::~HTMLMediaElement()
diff --git a/Source/WebCore/page/Settings.cpp b/Source/WebCore/page/Settings.cpp
index f668f3e..79e38d1 100644
--- a/Source/WebCore/page/Settings.cpp
+++ b/Source/WebCore/page/Settings.cpp
@@ -201,6 +201,8 @@ Settings::Settings(Page* page)
 #else
     , m_passwordEchoEnabled(false)
 #endif
+    , m_mediaPlaybackRequiresUserGesture(false)
+    , m_mediaPlaybackAllowsInline(true)
 {
     // A Frame may not have been created yet, so we initialize the AtomicString 
     // hash before trying to use it.
diff --git a/Source/WebCore/page/Settings.h b/Source/WebCore/page/Settings.h
index 2cf7715..84828ab 100644
--- a/Source/WebCore/page/Settings.h
+++ b/Source/WebCore/page/Settings.h
@@ -479,6 +479,12 @@ namespace WebCore {
         bool blockNetworkImage() const { return m_blockNetworkImage; }
 #endif
 
+        void setMediaPlaybackRequiresUserGesture(bool flag) { m_mediaPlaybackRequiresUserGesture = flag; };
+        bool mediaPlaybackRequiresUserGesture() const { return m_mediaPlaybackRequiresUserGesture; }
+
+        void setMediaPlaybackAllowsInline(bool flag) { m_mediaPlaybackAllowsInline = flag; };
+        bool mediaPlaybackAllowsInline() const { return m_mediaPlaybackAllowsInline; }
+
     private:
         Page* m_page;
 
@@ -633,6 +639,8 @@ namespace WebCore {
 #ifdef ANDROID_PLUGINS
         bool m_pluginsOnDemand : 1;
 #endif
+        bool m_mediaPlaybackRequiresUserGesture : 1;
+        bool m_mediaPlaybackAllowsInline : 1;
         bool m_passwordEchoEnabled : 1;
 
 #if USE(SAFARI_THEME)
diff --git a/Source/WebKit/android/jni/WebSettings.cpp b/Source/WebKit/android/jni/WebSettings.cpp
index 467da3d..1bd3e36 100644
--- a/Source/WebKit/android/jni/WebSettings.cpp
+++ b/Source/WebKit/android/jni/WebSettings.cpp
@@ -151,6 +151,7 @@ struct FieldIds {
 #endif
         mOverrideCacheMode = env->GetFieldID(clazz, "mOverrideCacheMode", "I");
         mPasswordEchoEnabled = env->GetFieldID(clazz, "mPasswordEchoEnabled", "Z");
+        mMediaPlaybackRequiresUserGesture = env->GetFieldID(clazz, "mMediaPlaybackRequiresUserGesture", "Z");
 
         ALOG_ASSERT(mLayoutAlgorithm, "Could not find field mLayoutAlgorithm");
         ALOG_ASSERT(mTextSize, "Could not find field mTextSize");
@@ -195,6 +196,7 @@ struct FieldIds {
         ALOG_ASSERT(mUseDoubleTree, "Could not find field mUseDoubleTree");
         ALOG_ASSERT(mPageCacheCapacity, "Could not find field mPageCacheCapacity");
         ALOG_ASSERT(mPasswordEchoEnabled, "Could not find field mPasswordEchoEnabled");
+        ALOG_ASSERT(mMediaPlaybackRequiresUserGesture, "Could not find field mMediaPlaybackRequiresUserGesture");
 
         jclass enumClass = env->FindClass("java/lang/Enum");
         ALOG_ASSERT(enumClass, "Could not find Enum class!");
@@ -281,6 +283,7 @@ struct FieldIds {
 #endif
     jfieldID mOverrideCacheMode;
     jfieldID mPasswordEchoEnabled;
+    jfieldID mMediaPlaybackRequiresUserGesture;
 };
 
 static struct FieldIds* gFieldIds;
@@ -616,6 +619,9 @@ public:
         bool echoPassword = env->GetBooleanField(obj,
                 gFieldIds->mPasswordEchoEnabled);
         s->setPasswordEchoEnabled(echoPassword);
+
+        flag = env->GetBooleanField(obj, gFieldIds->mMediaPlaybackRequiresUserGesture);
+        s->setMediaPlaybackRequiresUserGesture(flag);
     }
 };