blimp: Add support for input handling

blimp/client/android/blimp_view.h

Index: blimp/client/android/blimp_view.h
diff --git a/blimp/client/android/blimp_view.h b/blimp/client/android/blimp_view.h
index 97dc3ed8f0e81e384d3ff0f4694dde341a827950..8a1609cd1cb623676d0ada8f06d43f5526cd216c 100644
--- a/blimp/client/android/blimp_view.h
+++ b/blimp/client/android/blimp_view.h
@@ -48,6 +48,34 @@ class BlimpView {
   void OnSurfaceCreated(JNIEnv* env, jobject jobj);
   void OnSurfaceDestroyed(JNIEnv* env, jobject jobj);
   void SetVisibility(JNIEnv* env, jobject jobj, jboolean visible);
+  jboolean OnTouchEvent(JNIEnv* env,
+                        jobject obj,
+                        jobject motion_event,
+                        jlong time_ms,
+                        jint android_action,
+                        jint pointer_count,
+                        jint history_size,
+                        jint action_index,
+                        jfloat pos_x_0,
+                        jfloat pos_y_0,
+                        jfloat pos_x_1,
+                        jfloat pos_y_1,
+                        jint pointer_id_0,
+                        jint pointer_id_1,
+                        jfloat touch_major_0,
+                        jfloat touch_major_1,
+                        jfloat touch_minor_0,
+                        jfloat touch_minor_1,
+                        jfloat orientation_0,
+                        jfloat orientation_1,
+                        jfloat tilt_0,
+                        jfloat tilt_1,
+                        jfloat raw_pos_x,
+                        jfloat raw_pos_y,
+                        jint android_tool_type_0,
+                        jint android_tool_type_1,
+                        jint android_button_state,
+                        jint android_meta_state);
 
  private:
   virtual ~BlimpView();
@@ -57,6 +85,8 @@ class BlimpView {
   // Reference to the Java object which owns this class.
   base::android::ScopedJavaGlobalRef<jobject> java_obj_;
 
+  const float device_scale_factor_;
+
   scoped_ptr<BlimpCompositorAndroid> compositor_;
 
   // The format of the current surface owned by |compositor_|.  See